1FTPUSERS(5) Linux Programmer's Manual FTPUSERS(5)
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6 ftpusers - list of users that may not log in via the FTP daemon
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9 The text file ftpusers contains a list of users that may not log in
10 using the File Transfer Protocol (FTP) server daemon. This file is
11 used not merely for system administration purposes but also for improvā
12 ing security within a TCP/IP networked environment.
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14 The ftpusers file will typically contain a list of the users that
15 either have no business using ftp or have too many privileges to be
16 allowed to log in through the FTP server daemon. Such users usually
17 include root, daemon, bin, uucp, and news.
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19 If your FTP server daemon doesn't use ftpusers, then it is suggested
20 that you read its documentation to find out how to block access for
21 certain users. Washington University FTP server Daemon (wuftpd) and
22 Professional FTP Daemon (proftpd) are known to make use of ftpusers.
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24 Format
25 The format of ftpusers is very simple. There is one account name (or
26 username) per line. Lines starting with a # are ignored.
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29 /etc/ftpusers
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32 passwd(5), proftpd(8), wuftpd(8)
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35 This page is part of release 5.07 of the Linux man-pages project. A
36 description of the project, information about reporting bugs, and the
37 latest version of this page, can be found at
38 https://www.kernel.org/doc/man-pages/.
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42Linux 2000-08-27 FTPUSERS(5)